Method for determining the biting point of a hybrid disconnect clutch of a hybrid vehicle
AssigneeSchaeffler Technologies AG & Co. KG
InventorTimo Enders
Life of this patent
Estimating the term…
Abstract
A method determines the biting point of a hybrid disconnect clutch of a hybrid vehicle. The hybrid disconnect clutch disconnects or connects an internal combustion engine and a first electric motor, which is arranged on the output side. A second electric motor, which is arranged on the internal combustion engine side and is rigidly connected to the internal combustion engine, is operated at a constant rotational speed during electric travel by means of the first electric motor. The hybrid disconnect clutch is moved from the open state toward the closed state and the load on the second electric motor is monitored. When the load on the second electric motor reaches a predefined load threshold value, it is determined that the biting point has been reached.
Claims20
A method for determining a biting point of a disconnect clutch of a hybrid vehicle, the method comprising:
- propelling the hybrid vehicle while the disconnect clutch is open using a first electric motor on an output side of the disconnect clutch;
- transitioning the disconnect clutch from an open state to a closed state while monitoring a load on a second electric motor on an input side of the disconnect clutch;
- and
- concluding that the biting point has been reached when the load exceeds a predefined load threshold value.
A method for determining a biting point of a disconnect clutch of a hybrid vehicle, the method comprising:
- propelling the hybrid vehicle while the disconnect clutch is open using a first electric motor on an output side of the disconnect clutch;
- regulating a rotational speed of a second electric motor on an input side of the disconnect clutch by setting a torque of the second electric motor;
- determining an updated torque of the second electric motor while transitioning the disconnect clutch from an open state to a closed state;
- and
- concluding that the biting point has been reached based on the updated torque.
A method for determining a biting point of a disconnect clutch of a hybrid vehicle, the method comprising:
- propelling the hybrid vehicle while the disconnect clutch is open using a first electric motor on an output side of the disconnect clutch;
- setting a torque on a second electric motor on an input side of the disconnect clutch;
- transitioning the disconnect clutch from an open state to a closed state while monitoring an updated torque on the second electric motor;
- and
- concluding that the biting point has been reached when a difference between the torque and the updated torque equals a threshold value.
Dependencies are inferred from the claim text.